diff --git a/inheritance-and-composition/choosing/hr.py b/inheritance-and-composition/choosing/hr.py
index 804614e2b1..8e03668e25 100644
--- a/inheritance-and-composition/choosing/hr.py
+++ b/inheritance-and-composition/choosing/hr.py
@@ -11,7 +11,7 @@ def __init__(self):
     def get_policy(self, employee_id):
         policy = self._employee_policies.get(employee_id)
         if not policy:
-            return ValueError(employee_id)
+            raise ValueError(employee_id)
         return policy
 
     def calculate_payroll(self, employees):
diff --git a/inheritance-and-composition/composition/hr.py b/inheritance-and-composition/composition/hr.py
index 32e628254a..e4c976d59b 100644
--- a/inheritance-and-composition/composition/hr.py
+++ b/inheritance-and-composition/composition/hr.py
@@ -11,7 +11,7 @@ def __init__(self):
     def get_policy(self, employee_id):
         policy = self._employee_policies.get(employee_id)
         if not policy:
-            return ValueError(employee_id)
+            raise ValueError(employee_id)
         return policy
 
     def calculate_payroll(self, employees):